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# Peter

7 total contributions since 2016

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Question

how to get two-dimensional matrix from an generated image using frame2im
[image, Map] = frame2im(m(1)); points = detectSURFFeatures(image); There is an error about the incorrect input for the det...

circa 3 anni ago | 0 answers | 0

### 0

Question

How to apply detectHarrisFeatures to a video frame then recreate a new video using frames with detectHarrisFeatures
function [ RecreateVideo ] = convertVideoCorner( path ) v = VideoReader(path); vidHeight = v.Height; vidWidth...

circa 3 anni ago | 0 answers | 0

### 0

Question

How to convert struct to a video
v = VideoReader(path); vidHeight = v.Height; vidWidth = v.Width; mov=struct('cdata',zeros(vidHeight,vid...

circa 3 anni ago | 1 answer | 0

### 1

Question

FFT output is a frequency vector that can apply to this function?
In the Description of <https://uk.mathworks.com/help/matlab/ref/fft.html fft>, it said "If X is a vector, then fft(X) returns th...

circa 3 anni ago | 1 answer | 0

### 1

Question

HTK file writing parameters problem
% Open file for writing: fid = fopen(filename, 'w', 'ieee-be'); % Write the header information% fwrite(fid, nSam...

circa 3 anni ago | 0 answers | 0

### 0

Question

Custom short time spectral processing function and plotting continuous
function [ Mag, Phase ] = magPhase( Frame ) xF = Frame(1:320)*hamming(320); y = fft(xF); Mag = abs(y); Phase = a...

oltre 3 anni ago | 0 answers | 0